Gates 18285 HVAC Heater Hose - Reservoir To Engine

Gates Molded Heater Hose 18285 Overview

The Gates 18285 molded heater hose is an OEM-style coolant hose built for tight engine compartments where a straight hose will not route correctly. Its factory-molded shape supports clean routing for coolant, water, and air service, and it is approved for marine applications.

For Chevrolet Malibu, Pontiac G6, and Saturn Aura applications, this molded heater hose helps restore the proper reservoir-to-engine or engine-to-reservoir connection. The Gates Molded Heater Hose line focuses on formed replacement hoses that match the routing needs of modern vehicles.

Key Features

• Part number: 18285
• Brand: Gates Molded Heater Hose
• EPDM construction for coolant hose service
• Factory-molded, OEM-style shape for tighter engine bays
• End I.D.: 8 mm (0.31 in) on both ends
• Centerline length: 798 mm (31.4 in)
• Compatible with coolant, water, and air applications
• Approved for marine applications

Detailed Description

Gates 18285 is a molded HVAC heater hose made to follow the original routing path in vehicles with compact engine packaging. The EPDM material is commonly used in coolant hose applications for its resistance to heat and fluid exposure, while the molded profile helps maintain the correct hose path between the reservoir and engine. This part cross-references ACI 86839 for the same application.

Use this hose when replacing a formed heater hose on a Chevrolet Malibu, Pontiac G6, or Saturn Aura where the original hose shape is required for proper fitment. The Gates 18285 part number is also useful when searching for a molded coolant hose replacement by OE-style dimensions and routing.

What This Hose Helps Address

• Cracked or split molded heater hose sections
• Coolant leaks at a formed hose route
• Incorrect hose routing after a previous repair
• Restricted fitment in tight engine compartments
• Replacement needs for reservoir-to-engine or engine-to-reservoir connections

Installation Notes and Tips

Verify the hose route, end diameters, and centerline length before installation. Confirm whether your vehicle uses the reservoir-to-engine or engine-to-reservoir layout, since both positions appear in the fitment data for this part. Inspect adjoining fittings and clamps for wear, and replace any damaged sealing surfaces before installing the new hose.

Compatible With: Fits 2005-2012 Chevrolet Malibu, Reservoir To Engine; Fits 2006-2010 Pontiac G6, Reservoir To Engine; Fits 2008-2009 Saturn Aura, Reservoir To Engine; Fits 2005 Chevrolet Classic, Reservoir To Engine; Fits 2004 Chevrolet Malibu, Engine To Reservoir.

Quality Assurance

Gates manufactures this molded heater hose as an OE-style replacement part for vehicles that require formed coolant hose routing. The 18285 designation helps identify the correct molded hose for application matching and parts lookup.